Sentences with phrase «aerosols on cloud formation»

Also facing elimination are the Orbiting Carbon Observatory 3, which would observe carbon dioxide flows; a mission to the space station that would have supported tests of a spectrometer intended to measure solar reflection; and Plankton, Aerosol, Cloud, ocean Ecosystem, a satellite that would measure the colors of the ocean to gauge the global flow of algae and the influence of ocean aerosols on cloud formation.

Joe Ceonnia: ``... it seems to me as if this program is all over the globe» Joe, by observing the astoundingly unnatural patterns of atmospheric aerosols on cloud formations around the planet — via NASA Worldview (online)-- one can visibly observe the effects of geoengineering around the world.

Not exact matches

The aerosols catalyze the formation of ice in the clouds, which could increase precipitation, although more research needs to be done on that linkage, Creamean said.

Despite its smaller ash cloud, El Chichn emitted more than 40 times the volume of sulfur - rich gases produced by Mt. St. Helens, which revealed that the formation of atmospheric sulfur aerosols has a more substantial effect on global temperatures than simply the volume of ash produced during an eruption.

At least over the oceans, the pre-industrial cloud conditions would have been considerably different from those of today; this implies that the aerosols we have been adding to the atmosphere may have had a significant effect on global patterns of cloud formation and rain.

«Huge amounts of aerosols from Asia go as high as six miles up in the atmosphere and these have an unmistakable impact on cloud formations and weather.»

They found that galactic cosmic rays exert only a small influence on the formation of sulphuric acid — dimethylamine clusters (the embryonic stage before aerosols may act as cloud condensation nuclei).

However, I am not optimistic — the specifics of the small scale physics (aerosol indirect effects on clouds, sea ice formation, soil hydrology etc.) are so heterogeneous that I don't see how you can do without calculating the details.

Perhaps the thresholds for a CRF - cloud correlation was higher then than it has been for the past 40 years (one might imagine that in periods where the air is rather clear of man made aerosols, the threshold for CRF effects on cloud formation become higher... and so on).

This paper re-states the grand Svensmark theory and attempts to address the work that has shown cosmic rays can not be a significant influence on climate because most aerosols run out of stuff to become big enough for cloud formation.

In summary the findings to date indicate that the effect of cosmic rays on cloud formation is small compared to the large variations in natural biogenic aerosol emissions.

Romakkaniemi, S., Maalick, Z., Hellsten, A., Ruuskanen, A., Väisänen, O., Ahmad, I., Tonttila, J., Mikkonen, S., Komppula, M., and Kühn, T.: Aerosol — landscape — cloud interaction: signatures of topography effect on cloud droplet formation, Atmos.

If a cloud doesn't form then because of lack of aerosols to start formation, chill that sucker down some more to form ice crystals and it should make its on substrate to form.

The 2014 Biogenic Aerosols — Effects on Clouds and Climate (BAECC) field campaign in Finland has provided rich data on processes related to aerosol, cloud, and snow formation.

With cloud tops warmer than -38 degrees Celsius, ice formation depends on aerosols that preferentially freeze at warm temperatures, referred to as ice nuclei.

The Indirect and Semi-Direct Aerosol Campaign (ISDAC) field campaign, deployed from Barrow, Alaska, on a Canadian National Research Council Convair - 580 jet in April 2008, provided improved observations of two new cases of single - layer, mixed - phase, stratiform clouds that are well - suited to test our understanding of ice formation.

These clouds then glaciate in higher levels, which could result in either more or less vigorous precipitation formation depending on the background aerosol levels and atmospheric stability (Khain et al., 2004).

On the other hand, if some of the anthropogenic aerosols act as ice nuclei, supercooled clouds could be converted into ice clouds by the glaciation indirect effect (Lohmann, 2002), resulting in more efficient precipitation formation.

It has been hypothesized that galactic cosmic rays (GCR) create atmospheric ions which facilitates aerosol nucleation and new particle formation with a further impact on the cloud formation (Kazil et al., 2012; Pierce and Adams, 2009).

In the article «Global atmospheric particle formation from CERN CLOUD measurements,» sciencemag.org, 49 authors concluded «Atmospheric aerosol nucleation has been studied for over 20 years, but the difficulty of performing laboratory nucleation - rate measurements close to atmospheric conditions means that global model simulations have not been directly based on experimental data.....

Under strict temperature and humidity conditions, investigations in this laboratory provide new information on the particular aerosol particles that can lead to the formation of these clouds.

Chamber research is focused on understanding the lifecycle of organic aerosols, including their formation, growth, aging (oxidation), re-volatilization, and effect on cloud formation.

BAECC was designed to obtain important details on processes related to aerosol, cloud, and snow formation that are not currently well understood or well represented in earth system models.

Topics that I work on or plan to work in the future include studies of: + missing aerosol species and sources, such as the primary oceanic aerosols and their importance on the remote marine atmosphere, the in - cloud and aerosol water aqueous formation of organic aerosols that can lead to brown carbon formation, the primary terrestrial biological particles, and the organic nitrogen + missing aerosol parameterizations, such as the effect of aerosol mixing on cloud condensation nuclei and aerosol absorption, the semi-volatility of primary organic aerosols, the importance of in - canopy processes on natural terrestrial aerosol and aerosol precursor sources, and the mineral dust iron solubility and bioavailability + the change of aerosol burden and its spatiotemporal distribution, especially with regard to its role and importance on gas - phase chemistry via photolysis rates changes and heterogeneous reactions in the atmosphere, as well as their effect on key gas - phase species like ozone + the physical and optical properties of aerosols, which affect aerosol transport, lifetime, and light scattering and absorption, with the latter being very sensitive to the vertical distribution of absorbing aerosols + aerosol - cloud interactions, which include cloud activation, the aerosol indirect effect and the impact of clouds on aerosol removal + changes on climate and feedbacks related with all these topics In order to understand the climate system as a whole, improve the aerosol representation in the GISS ModelE2 and contribute to future IPCC climate change assessments and CMIP activities, I am also interested in understanding the importance of natural and anthropogenic aerosol changes in the atmosphere on the terrestrial biosphere, the ocean and climate.